Koyorad has improved cooling performance for heavily modified 2001-2005 Lexus IS300 vehicles and is proud to announce a brand-new competition-spec all-aluminum racing radiator for turbocharged 1JZ and 2JZ engine-swapped vehicles.

Features:

• All-aluminum construction with TIG-welded tanks and a furnace-brazed core
• High-density 36mm HyperCore for maximum efficiency and a slim profile to accommodate other engine components
• Over 40% increased thickness over the factory OEM radiator
• “NFLO” Triple Pass Technology promotes coolant flow throughout the entire core for maximum heat transfer
• Maintains OEM mounting provisions and fan shroud mounts for ease of installation
• Manufactured and individually triple pressure-tested in Koyorad’s private ISO 9001-certified factory

Part #: VH010934N

Applications:

• 2001-2005 Lexus IS300 with manual transmission

Special Notes:

• Designed for 1JZ-GTE and 2JZ-GTE turbo swaps, but is also compatible with 2JZ-GE manual transmission vehicles
• Use Koyorad SK-C13 or equivalent deep-plunger radiator cap; not compatible with the OEM cap
• Requires new A-style radiator cap
• Designed for manual transmission cars only, as it does not have the trans cooler/preheater route at the bottom of the core
• Fully welded aluminum top and bottom tanks for long life

Available with HPS silicone radiator hoses as an add-on kit.

N-FLO Technology:

When factory-equipped radiators have inlet and outlet locations that allow proper placement, Koyorad carefully welds aluminum partitions in the upper and lower tanks of the radiator. This is Koyorad’s N-Flo Technology, which allows for a double- or triple-pass radiator. This design cools more efficiently by allowing the coolant to remain in the radiator for a longer period of time, transferring more heat to the surrounding air. N-Flo Technology is available on cars that are known to have limited airflow to the radiator. Unless noted otherwise, all Koyorad N-Flo aluminum radiators are Nocolok brazed, designed as a factory-fit direct bolt-in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans. See notes in individual item descriptions for details.

HYPER V SERIES 36mm Core Thickness with Hyper Fin and Tube Pitch

The Hyper V-Core Series is the newest addition to the Koyorad | Koyo all-aluminum racing radiator lineup. An engine's cooling system in many newer vehicles suffers due to limited space and crowding, which affects air circulation. The ultra-efficient Hyper V core was developed specifically for vehicles that see extreme heat, have limited space, and where factory inlet/outlet locations eliminate the option for a proper N-FLO design. The Hyper V Series radiators have a specially designed fin and tube pitch that significantly increases surface area while still allowing excellent air circulation through the radiator. The Hyper V-Core Series is the perfect solution where space savings and high performance are a must. Unless noted otherwise, all Koyorad Hyper V-Series all-aluminum radiators are Nocolok brazed, designed as a factory-fit direct bolt-in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans.